Finding the Third Proportional to 10,998,468 and 16,639,260

Step by Step Solution

1. Step 1: Write the proportion equation
   10,998,468 : 16,639,260 = 16,639,260 : x
2. Step 2: Convert to fraction form
   10,998,468/16,639,260 = 16,639,260/x
3. Step 3: Cross multiply
   10,998,468x = 16,639,260 × 16,639,260
4. Step 4: Simplify right side
   10,998,468x = 276,864,973,347,600
5. Step 5: Solve for x
   x = 276,864,973,347,600/10,998,468
6. Step 6: Final answer
   x = 25,173,048.95